javaparser-core-testing/src/test/java/com/github/javaparser/ast/body/ClassOrInterfaceDeclarationTest.java

package com.github.javaparser.ast.body;

import com.github.javaparser.ast.CompilationUnit;
import org.junit.jupiter.api.Test;

import static com.github.javaparser.StaticJavaParser.parse;
import static com.github.javaparser.StaticJavaParser.parseBodyDeclaration;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;

class ClassOrInterfaceDeclarationTest {
    @Test
    void staticNestedClass() {
        CompilationUnit cu = parse("class X{static class Y{}}");
        ClassOrInterfaceDeclaration y = cu.getClassByName("X").get().getMembers().get(0).asClassOrInterfaceDeclaration();

        assertFalse(y.isInnerClass());
        assertTrue(y.isNestedType());
        assertFalse(y.isLocalClassDeclaration());
    }

    @Test
    void nestedInterface() {
        CompilationUnit cu = parse("class X{interface Y{}}");
        ClassOrInterfaceDeclaration y = cu.getClassByName("X").get().getMembers().get(0).asClassOrInterfaceDeclaration();

        assertFalse(y.isInnerClass());
        assertTrue(y.isNestedType());
        assertFalse(y.isLocalClassDeclaration());
    }

    @Test
    void nonStaticNestedClass() {
        CompilationUnit cu = parse("class X{class Y{}}");
        ClassOrInterfaceDeclaration y = cu.getClassByName("X").get().getMembers().get(0).asClassOrInterfaceDeclaration();

        assertTrue(y.isInnerClass());
        assertTrue(y.isNestedType());
        assertFalse(y.isLocalClassDeclaration());
    }

    @Test
    void topClass() {
        CompilationUnit cu = parse("class X{}");
        ClassOrInterfaceDeclaration y = cu.getClassByName("X").get();

        assertFalse(y.isInnerClass());
        assertFalse(y.isNestedType());
        assertFalse(y.isLocalClassDeclaration());
    }

    @Test
    void localClass() {
        MethodDeclaration method = parseBodyDeclaration("void x(){class X{};}").asMethodDeclaration();
        ClassOrInterfaceDeclaration x = method.findFirst(ClassOrInterfaceDeclaration.class).get();

        assertFalse(x.isInnerClass());
        assertFalse(x.isNestedType());
        assertTrue(x.isLocalClassDeclaration());
    }
}